CN104064853A - Foldable horn radar antenna - Google Patents
Foldable horn radar antenna Download PDFInfo
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- CN104064853A CN104064853A CN201410319267.7A CN201410319267A CN104064853A CN 104064853 A CN104064853 A CN 104064853A CN 201410319267 A CN201410319267 A CN 201410319267A CN 104064853 A CN104064853 A CN 104064853A
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- radar antenna
- horn
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- folded form
- fan
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Abstract
The invention provides a foldable horn radar antenna. The foldable horn radar antenna comprises a horn base, a set of fan-shaped blades and a pressing pipe, wherein the fan-shaped blades can be combined to be in a horn shape, the narrow ends of the fan-shaped blades are overlaid and pressed at the large end of the horn base at equal intervals, the narrow ends of the fan-shaped blades are sleeved with the pressing pipe in a pressed mode, and the fan-shaped blades are attached to the outer wall of the horn base through the pressing pipe. The fan-shaped blades are bound up by means of the pressing pipe and return to the original state under the elastic potential energy after penetrating through an installation port. According to the principle, under the condition that a site installation caliber can not be changed, the structure of the horn radar antenna is changed, the area for receiving echo signals is increased by increasing the caliber of the horn radar antenna. Thus, more effective echo signals are received.
Description
Technical field
The present invention relates to radar levelmeter, relate in particular to the horn antenna for radar levelmeter, belong to level gauging technical field.
Background technology
In the level gauging field of modern industry, pulse radar is widely used.Its operation principle is the extremely narrow microwave pulse of radar levelmeter antenna transmission, and this microwave pulse at spatial, runs into measured medium surface with the light velocity, and its portion of energy is reflected back, and by the same antenna, is received.According to transmitting and time difference of echo-signal, just can calculate this material apart from the position of antenna transmission point.
Whether according to principle recited above, its antenna assembly is as the electromagnetic part that transmits and receives, and antenna aperture can affect the power that transmits and receives signal, and then cause instrumentation normal.
During industry tank body level of filler material is measured, when radar levelmeter is installed and used, having horn mouth one end then need to first enter tank body through installing port.Owing to being subject to the restriction of tank design, the size of some on-the-spot actual installation mouth is generally all smaller, and expand installing port, can impact global design.Therefore, can only adopt the loudspeaker radar antenna identical with installing port bore.Receive like this restriction that signal area is subject to existing installation caliber size, cause instrument to receive signal capabilities poor, reflected signal is lost, and cannot meet measurement requirement.
Summary of the invention
For solving small-bore installing port, mate the problem a little less than small-bore horn antenna causes signal, the invention provides a kind of folded form loudspeaker radar antenna, its principle is in the situation that not changing on-the-spot installation caliber size, change the structure of loudspeaker radar antennas, by increasing the bore of loudspeaker radar antenna, increased reception echo-signal area.Thereby receive how effective echo-signal.
For achieving the above object, the scheme that the present invention takes is:
A folded form loudspeaker radar antenna, comprising: a horn base; One group can be combined into trumpet-shaped sector; The narrow end of described sector is equidistantly laminated on the large end of horn base; Also comprise that cover is pressed in the narrow end of sector and makes sector be close to a pressure pipe of horn base outer wall.
Further, described sector wall thickness is 0.2mm～0.4mm.
Further, the other end of described horn base has an adpting flange.
Further, one end of described horn base is connected by welding or integrated mode with the narrow end of sector.
Further, described pressure pipe comprises two symmetrical pressure pipe halfbodies, and described pressure pipe halfbody connects by welding or bonding mode.
Further, the equidistant outer wall that is laminated on the large end of horn base of the narrow end of described sector.
Further, described sector quantity is more than 6.
Further, described horn base, horn mouth and pressure pipe are metal material.
Further, described folded form loudspeaker radar antenna is for level gauging.
As above-mentioned, folded form loudspeaker radar antenna provided by the invention is compared with original whole horn antenna structure, and pressure pipe is in order to the fixing narrow end of loudspeaker, and the time standby hand of the installation large end that contracts just can be filled in installing port.Dwindle bell-mouthed size, can pass the less installing port of size, after passing, arrive installation site, under the effect of sector self elastic potential energy, reply after original-shape, the large end size of its horn mouth is much larger than the size of installing port.Thereby can receive more echo-signal, improve the quality of measuring.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure: 1-horn base; 2-pressure pipe; 3-sector.
Fig. 2 is radar levelmeter scheme of installation
In figure: 1-horn base; 2-pressure pipe; 3-sector; 4-tank body; 5-installing port; 6-flange; 7 table body electronic units.
Embodiment
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate institute's accompanying drawing to be described in detail below.
Embodiment:
Folded form loudspeaker radar antenna as shown in Figure 1, comprises horn base 1, pressure pipe 2 and one group of sector 3.
Horn base 1 is made by stainless steel metal, and its one end is connected with sector 3, and the other end has flange or helicitic texture (not shown), in order to be partly connected with instrument connector.Certainly horn base 1 also can be used and according to operating mode difference, select other material, and as carbon steel, manganese steel etc., the present invention does not limit this.
Pressure pipe 2 is also made by stainless steel metal, is sleeved on the small end of sector, can be one-body molded, for convenient, installs, and also can be divided into two pressure pipe halfbodies, in welding or bonding, or affixed by other means after suit.Certainly pressure pipe 2 also can be selected other material according to operating mode difference, and as carbon steel, manganese steel etc., the present invention does not limit this.
Sector 3 is made by the thick corrosion resistant plate of 0.2mm～0.4mm, by 6 or more sector, forms a trumpet-shaped antenna, and pressure pipe 2 is pressed in the small end of sector 3.Sector 3 is tightened by pressure pipe 2, and equidistant stack is close to the lateral surface of horn base 1.The material of sector 3 is not limited to stainless steel equally, different according to operating mode, also can select other high-quality spring steel etc.The present invention does not limit this.The large end of horn mouth 3, according to the difference of size, also can be divided into more sector, if 8 parts, 10 parts, 13 parts etc., the present invention does not limit this.
As shown in Figure 2, folded form loudspeaker radar antenna is first by being installed on table body electronic unit 7, table body electronic unit 7 has flange 6, flange on the installing port 5 having with tank body 4 is connected, the horn-like antenna aperture that sector 3 forms is greater than installing port 5 bores, if not folding, clearly aforementioned horn-like antenna cannot enter in tank body 4 through installing port 5, only have folding horn-like antenna could pass through installing port 5 in the situation that shrinking, and launch under elastic reaction, realize the function of radar antenna.
As aforementioned, when horn mouth 3 is held greatly by radial compression, blade is in shrinking overlap condition, its radial dimension reduces greatly, and has elastic potential energy, now, can pass smoothly the less installing port 5 of size, after passing, enter tank body 4, reach installation site, under elastic potential energy effect, horn mouth 3 launches, and now the size of horn mouth 3 is far longer than the size of installing port, can receive more echo-signal, thereby improve accuracy of measurement.
To sum up, the peculiar structure of folded horn radar antenna that the present embodiment is lifted, has reduced the limitation of existing product greatly, and simple in structure, easy to use.This structure is applicable to 6GHz low-frequency range and 26GHz high-frequency range pulse radar material level meter.The installation dimension of 6GHz folded form loudspeaker radar antenna is ￠ 76mm, by adopting structure maximum of the present invention can expand to ￠ 200mm.26GHz folded form horn antenna installation dimension is ￠ 48mm, by adopting the bright structure maximum of this law can expand to ￠ 125mm.Signal amplification sees the following form:
The signal amplitude receiving promotes significantly, and amplification maximum reaches respectively 8dbi and 8.5dbi, and except above-mentioned two kinds of specifications, the present invention is also applicable to the radar antenna horn structure of other specifications.Solved more thoroughly the excessively weak problem of signal causing because installing port is too small.And input cost is lower, can extensively promote.
Although the present invention describes as above with aforesaid embodiment, it can not be in order to limit the present invention.The ordinary technical staff in the technical field of the invention, without departing from the spirit and scope of the present invention, does a little change and modification, in protection scope of the present invention.Therefore protection scope of the present invention when with claim the person of being defined be as the criterion.
Claims (8)
1. a folded form loudspeaker radar antenna, comprising: a horn base; One group can be combined into trumpet-shaped sector; The narrow end of described sector is equidistantly laminated on the large end of horn base; Also comprise that cover is pressed in the narrow end of sector and makes sector be close to a pressure pipe of horn base outer wall.
2. folded form loudspeaker radar antenna as claimed in claim 1, is characterized in that, described sector wall thickness is 0.2mm～0.4mm.
3. folded form loudspeaker radar antenna as claimed in claim 1, is characterized in that, the other end of described horn base has an adpting flange.
4. folded form loudspeaker radar antenna as claimed in claim 1, is characterized in that, the large end of described horn base is connected by welding or integrated mode with the narrow end of sector.
5. folded form loudspeaker radar antenna as claimed in claim 1, is characterized in that, described pressure pipe comprises two symmetrical pressure pipe halfbodies, and described pressure pipe halfbody connects by welding or bonding mode.
6. folded form loudspeaker radar antenna as claimed in claim 1, is characterized in that, described sector quantity is more than 6.
7. folded form loudspeaker radar antenna as claimed in claim 1, is characterized in that, described horn base, horn mouth and pressure pipe are metal material.
8. folded form loudspeaker radar antenna as claimed in claim 1, is characterized in that, described folded form loudspeaker radar antenna is for level gauging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319267.7A CN104064853B (en) | 2014-07-07 | 2014-07-07 | Folded form loudspeaker radar antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319267.7A CN104064853B (en) | 2014-07-07 | 2014-07-07 | Folded form loudspeaker radar antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104064853A true CN104064853A (en) | 2014-09-24 |
| CN104064853B CN104064853B (en) | 2016-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410319267.7A Active CN104064853B (en) | 2014-07-07 | 2014-07-07 | Folded form loudspeaker radar antenna |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706533A (en) * | 2017-07-31 | 2018-02-16 | 成都希塔科技有限公司 | The Broadband Horn Antenna that can be folded |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4965869A (en) * | 1987-06-23 | 1990-10-23 | Brunswick Corporation | Aperture antenna having nonuniform resistivity |
| EP1211490A2 (en) * | 2000-12-01 | 2002-06-05 | Krohne Messtechnik Gmbh & Co. Kg | Radar level gauge |
| DE10354754A1 (en) * | 2003-11-21 | 2005-06-23 | Endress + Hauser Gmbh + Co. Kg | Horn antenna for level measurement device with electromagnetic signals and mounted in or on nozzle of container or in or on an end region of pipe protruding into container is assembled from number of segments |
| CN201956462U (en) * | 2010-11-10 | 2011-08-31 | 中国电子科技集团公司第十四研究所 | UWB curved TEM horn |
| CN203967233U (en) * | 2014-07-07 | 2014-11-26 | 北京古大仪表有限公司 | Folded form loudspeaker radar antenna |
-
2014
- 2014-07-07 CN CN201410319267.7A patent/CN104064853B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4965869A (en) * | 1987-06-23 | 1990-10-23 | Brunswick Corporation | Aperture antenna having nonuniform resistivity |
| EP1211490A2 (en) * | 2000-12-01 | 2002-06-05 | Krohne Messtechnik Gmbh & Co. Kg | Radar level gauge |
| DE10354754A1 (en) * | 2003-11-21 | 2005-06-23 | Endress + Hauser Gmbh + Co. Kg | Horn antenna for level measurement device with electromagnetic signals and mounted in or on nozzle of container or in or on an end region of pipe protruding into container is assembled from number of segments |
| CN201956462U (en) * | 2010-11-10 | 2011-08-31 | 中国电子科技集团公司第十四研究所 | UWB curved TEM horn |
| CN203967233U (en) * | 2014-07-07 | 2014-11-26 | 北京古大仪表有限公司 | Folded form loudspeaker radar antenna |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706533A (en) * | 2017-07-31 | 2018-02-16 | 成都希塔科技有限公司 | The Broadband Horn Antenna that can be folded |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104064853B (en) | 2016-09-07 |
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